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Full-Text Articles in Radiology
Structural Changes In Glaucoma: A Volumetric Mri Study, John Lackey, Alice L. Williams, Srinivas Gatla, Sheryl S. Wizov, Thomas Chia, George Spaeth, Song Lai
Structural Changes In Glaucoma: A Volumetric Mri Study, John Lackey, Alice L. Williams, Srinivas Gatla, Sheryl S. Wizov, Thomas Chia, George Spaeth, Song Lai
Department of Radiology Faculty Papers
Purpose: To investigate brain structural changes in patients with glaucoma.
Methods: High resolution 3D T1-weighted MP-RAGE MRI images were collected in 11 glaucoma patients (5 female, 6 male, 65+/-11 yrs), and 11 age- and gender-matched controls (64+/-12 yrs). The images were first analyzed using an automatic voxel-based morphometry technique which combines a fully automated spatial normalization approach, dubbed HAMMER [1], in conjunction with a tissue mass preserving framework called RAVENS [2]. Four consecutive steps were carried out: removal of non-brain voxels, tissue segmentation, spatial normalization to a standardized template, and generation of a mass-preserving tissue density map (i.e. RAVENS map) …
Avoiding Unnecessary Fine-Needle Aspiration Cytology By Accuractely Predicting The Benign Nature Of Thyroid Nodules Using Ultrasound, Sudhir Vinayak, Joyce Sande
Avoiding Unnecessary Fine-Needle Aspiration Cytology By Accuractely Predicting The Benign Nature Of Thyroid Nodules Using Ultrasound, Sudhir Vinayak, Joyce Sande
Imaging & Diagnostic Radiology, East Africa
Objective: The objective of this study was to describe a reliable ultrasound based index scoring system based on ultraound characteristics to identify benign thyroid nodules and avoid unnecessary fine needle aspiration cytology.
Materials and Methods: Patients undergoing ultrasound-guided fine-needle aspiration cytology (FNAC) for thyroid nodules were evaluated prospectively. A total of 284 patients were evaluated from November 2005 to November 2011. There were 284 nodules. Any solid or partly solid focal nodule in the thyroid gland was included in the study. Cysts with no solid component were excluded. We used LOGIQ 9 (GE Healthcare) scanner equipped with a 10--14 MHz …
Dramatically Increased Musculoskeletal Ultrasound Utilization From 2000 To 2009, Especially By Podiatrists In Private Offices, Richard E. Sharpe, Levon N. Nazarian, Laurence Parker, Vijay Rao, David C. Levin
Dramatically Increased Musculoskeletal Ultrasound Utilization From 2000 To 2009, Especially By Podiatrists In Private Offices, Richard E. Sharpe, Levon N. Nazarian, Laurence Parker, Vijay Rao, David C. Levin
Department of Radiology Faculty Papers
PURPOSE: Over the past two decades, musculoskeletal (MSK) ultrasound has emerged as an effective means of diagnosing MSK pathologies. However, some insurance providers have expressed concern about increased MSK ultrasound utilization, possibly facilitated by the low cost and ready availability of ultrasound technology. The purpose of this study was to document trends in MSK ultrasound utilization from 2000 to 2009 within the Medicare population.
METHODS: Source data were obtained from the CMS Physician/Supplier Procedure Summary Master Files from 2000 to 2009, and records were extracted for procedures for extremity nonvascular ultrasound. We analyzed annual volume by provider type using specialties, …